known ransomware use

Microsoft Windows Certificate Dialog Privilege Escalation Vulnerability

Added to KEV
2023-04-07
Federal due date
2023-04-28
Vendor
Microsoft
Product
Windows
EPSS
92.2th percentile (score 0.080, as of 2026-06-08)
NVD CVSS v3.1
Ransomware use
Known
Upstream
https://nvd.nist.gov/vuln/detail/CVE-2019-1388

CISA short description

Microsoft Windows Certificate Dialog contains a privilege escalation vulnerability, allowing attackers to run processes in an elevated context.

Required action

Apply updates per vendor instructions.

EPSS percentile is the FIRST.org exploit-probability ranking as of the date noted above; it moves daily. CVSS reflects NVD's analysis at time of publication.